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Casey Anthony investigation heads to grand jury

A grand jury will convene on Tuesday to determine whether homicide charges should be filed against Casey Anthony.

Prosecutors will try to convince jurors that they can prove she killed her daughter, Caylee.

The grand jury consists of 18 people. The only member of the family who will be called to testify will be George Anthony, Casey Anthony's father.

"I'm not nervous at all. You can't be nervous about something you have conviction for, that you have knowledge about. You're not going to be nervous about it. Everyone thinks I'm nervous talking to you guys. I'm very, very down to earth about a lot of stuff. That doesn't bother me," George Anthony said.

The World Anti-Doping Agency (WADA) said Sunday it was "very alarmed" by reports of widespread doping by track and field athletes in major competitions including the Olympic Games and world championships.

The Obama administration will unveil a major climate change plan Monday aimed at a large reduction in greenhouse gas emissions from the nation's coal-burning power plants, a senior administration official told CNN.

As top GOP presidential candidates arrived at a hotel here to court the influential donors of the Koch network, Charles Koch called on retreat attendees to unite with him in a campaign against "corporate welfare" and "irresponsible spending" by both ...